An EXCEPTION WHEN ... THEN clause that only rethrows the caught exception has the same effect as omitting the EXCEPTION
clause altogether and letting it bubble up automatically.
BEGIN
  SELECT 1/0;
EXCEPTION
  WHEN ZERO_DIVIDE THEN
    RAISE; -- Noncompliant
  WHEN OTHERS THEN
    RAISE; -- Noncompliant
END;
Such clauses should either be removed or populated with the appropriate logic.
BEGIN
  SELECT 1/0;
EXCEPTION
  WHEN ZERO_DIVIDE THEN
    -- do something to manage the division by zero
    COMMIT;
  WHEN OTHERS THEN
    ROLLBACK;
END;